Mattress design



FIG. 1 is a perspective view of a first embodiment of the mattress design.

FIG. 2 is a side view of the mattress design of FIG. 1, identical to the opposite side view thereof.

FIG. 3 is an end view of the mattress design of FIG. 1.

FIG. 4 is a top view of the mattress design of FIG. 1.

FIG. 5 is a bottom view of the mattress design of FIG. 1.

FIG. 6 is a perspective view of a second embodiment of the mattress design.

FIG. 7 is a side view of the mattress design of FIG. 6.

FIG. 8 is an end view of the mattress design of FIG. 6.

FIG. 9 is a top view of the mattress design of FIG. 6; and,

FIG. 10 is a bottom view of the mattress design of FIG. 6.

The broken lines are for environmental purposes only and form no part of the claimed design. The angled shade lines in FIGS. 6-9 depict the color brown. 

The ornamental designs for a mattress design, as shown and described. 